Cover Page - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Mar. 18, 2024	Jun. 30, 2023
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	000-50171
Entity Registrant Name	Travelzoo
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-4415727
Entity Address, Address Line One	590 Madison Avenue
Entity Address, Address Line Two	35th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10022
Country Region	+1
City Area Code	212
Local Phone Number	516-1300
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	TZOO
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Auditor Attestation Flag	false
Document Financial Statement Error Correction Flag	false
Entity Shell Company	false
Entity Public Float			$ 56,843
Entity Common Stock, Shares Outstanding		13,224,441
Documents Incorporated by Reference	Portions of the Registrant's Proxy Statement for its 2024 Annual Meeting of Stockholders are incorporated by reference in this Form 10-K in response to Part III, Items 10, 11, 12, 13, and 14.
Entity Central Index Key	0001133311
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY